GB1482721A - Variable weight transfer device for road-rail tractor couplers - Google Patents
Variable weight transfer device for road-rail tractor couplersInfo
- Publication number
- GB1482721A GB1482721A GB3465/75A GB346575A GB1482721A GB 1482721 A GB1482721 A GB 1482721A GB 3465/75 A GB3465/75 A GB 3465/75A GB 346575 A GB346575 A GB 346575A GB 1482721 A GB1482721 A GB 1482721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- valves
- line
- tractor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
- B61J3/00—Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car propelling devices therefor
- B61J3/12—Self-propelled tractors or pushing vehicles, e.g. mules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
- B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
- B60F1/043—Vehicles comprising own propelling units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
Abstract
1482721 Railway mules; rail/road vehicles WHITING CORP 27 Jan 1975 [28 Jan 1974] 3465/75 Headings B7H and B7D A tractor adapted for use on rails or roads includes a coupler 25, 26 for coupling to a rail car and means 29, 30 for transferring weight from the rail car to the rail-wheels 27a, 28a to increase traction, the weight transfer force being varied automatically by an hydraulic control circuit in response to the pulling or pushing traction needs of the tractor when moving. The front and rear weight transfer cylinders 29, 30 are connected between the pivoted coupler plates 25, 26 and the frame 22 of the tractor, and hydraulic supply thereto is controlled by driver operable valves 41, 42 and a valve assembly 40 which is responsive to the tractor speed, engine torque, transmission state or draft force and hence to the traction need. Valves 41, 42 have three positions respectively for raising, lowering or shutting off the cylinders 29, 30 and may be solenoid or manually actuated. Valve assembly 40 includes, an arrangement whereby the pressure supplied to the valves 41, 42 may be varied to meet the traction needs either step-wise, Fig. 2, or continuously (Fig. 3, not shown). The stepwise control assembly includes a valve 65 controlled by spring 65a and pressure parts 65b, 65c, relief valves 67, 66 set to open at respectively higher and lower valves, and a three position control valve 68 which is solenoid operated by a signal generator responsive to the traction needs. Valve 65 is arranged so that reduction of pressure at port 65b decreases the pressure in line 48a to valves 41, 42. Control valve 68 is in the blocked position 68b when no signal is applied to either of its solenoids through lines 86, 85, hence only relief valve 67 is connected to drain through line 70. In this case the pressure at port 65b is at its highest and the maximum pressure is supplied to line 48a. When a signal is applied to valve 68 to cause it to go to position 68a, drain line from relief valve 66 is connected to exhaust and the pressure at port 65b drops to that of the setting of valve 66 thus reducing the pressure in line 48a. If the signal causes valve 68 to occupy position 68c port 65b is connected by line 72 to drain and the minimum pressure exists in line 48a. In another embodiment (Fig. 3) the valves 66-68 are replaced by a continuously variable relief valve (158). A valve 73 in line 48a prevents any sudden pressure increases due to bumpy tracks. The signal generator may be speed sensitive (Fig. 5, not shown), responsive to a mechanical or hydraulic transmission (Figs. 4 and 6, not shown), responsive to engine torque or may be responsive to the draft force. In the latter case the coupling head stem 132 is surrounded by sliding plates 134, 135 separated by a resilient pad 136, each plate carrying a switch contact member 143, 145. As the draft force alters the plates more relatively to control actuation of the switch 144 or a potentiometer (165) (Fig. 10, not shown). Road wheels 35, 36 on the tractor may be raised and lowered by cylinders 37, 38 controlled by a driver actuable valve 43. Front and rear shock absorbers 33, 34 are connected to valves 41, 42 and the weight transfer cylinders 29, 30 to prevent the springs 31, 32 bottoming under full load.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437283A US3884156A (en) | 1974-01-28 | 1974-01-28 | Automatically traction effort controlled convertible rail-highway tractor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1482721A true GB1482721A (en) | 1977-08-10 |
Family
ID=23735812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3465/75A Expired GB1482721A (en) | 1974-01-28 | 1975-01-27 | Variable weight transfer device for road-rail tractor couplers |
Country Status (12)
Country | Link |
---|---|
US (2) | US3884156A (en) |
JP (1) | JPS50107609A (en) |
AU (1) | AU476798B2 (en) |
BE (1) | BE824632A (en) |
BR (1) | BR7500547A (en) |
CA (1) | CA1030015A (en) |
CH (1) | CH584123A5 (en) |
DE (1) | DE2500627A1 (en) |
FR (1) | FR2258997B1 (en) |
GB (1) | GB1482721A (en) |
NL (1) | NL7500927A (en) |
ZA (1) | ZA747928B (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA747928B (en) * | 1974-01-28 | 1976-07-28 | Whiting Corp | Variable weight tranfer device for road-rail tractor couplers |
US4067259A (en) * | 1975-01-28 | 1978-01-10 | Whiting Corporation | Convertible rail-highway traction vehicle |
CA1043632A (en) * | 1975-02-24 | 1978-12-05 | Whiting Corporation | Rail traction vehicle |
US4167142A (en) * | 1977-10-21 | 1979-09-11 | Whiting Corporation | Convertible railway car shifting locomotive |
SE429123B (en) * | 1979-01-16 | 1983-08-15 | Saab Scania Ab | ARRANGEMENTS FOR PEDAL CARE IN VEHICLE |
US4380198A (en) * | 1979-05-21 | 1983-04-19 | White Machinery Corporation | Vehicle having improved coupling system and system for absorption of shock on coupling |
AT374520B (en) * | 1982-08-24 | 1984-05-10 | Plasser Bahnbaumasch Franz | TRACKABLE RAILWAY MACHINE WITH A CAB |
US4802549A (en) * | 1987-07-30 | 1989-02-07 | Elgin Sweeper Company | Central rotating terminal for vehicles |
US5168815A (en) * | 1991-07-31 | 1992-12-08 | Stewart & Stevenson Services, Inc. | Railroad car moving vehicle |
US5217181A (en) * | 1992-02-28 | 1993-06-08 | Ussc Group, Inc. | Sliding support |
US5301615A (en) * | 1993-04-19 | 1994-04-12 | Trackmobile, Inc. | Railcar moving vehicle having monitored weight transfer process including sensors for sensing transfer of full weight |
FR2720360B1 (en) * | 1994-05-26 | 1996-07-19 | Camail Ets J | Locomotive drive device. |
DE4437894B4 (en) * | 1994-10-22 | 2005-09-08 | Bosch Rexroth Ag | Pilot control arrangement for a hydraulically actuated main control valve |
US6199485B1 (en) | 1999-08-04 | 2001-03-13 | James Lee Pyle | Rail conversion module for road tractor |
US7070019B2 (en) * | 2001-06-21 | 2006-07-04 | Yamaha Motor Corporation Usa | Power assisted steering for all terrain vehicle |
JP2003149063A (en) * | 2001-11-14 | 2003-05-21 | Yamaha Motor Co Ltd | Torque detector |
CA2446484C (en) * | 2002-10-28 | 2007-09-04 | Brandt Road Rail Corporation | Rail car mover apparatus for loader vehicle |
US6966399B2 (en) * | 2002-11-26 | 2005-11-22 | Yamaha Motor Corporation, U.S.A. | Small vehicle with power steering assembly |
JP2005059608A (en) * | 2003-08-08 | 2005-03-10 | Yamaha Motor Co Ltd | Snowmobile |
CN102182717A (en) * | 2011-04-27 | 2011-09-14 | 南车四方车辆有限公司 | Hydraulic system and rail-road vehicle |
DE102011117279A1 (en) * | 2011-10-31 | 2013-05-02 | Wolfgang Zappel | Two way vehicle with movable road drive wheels |
US8997657B2 (en) | 2011-11-07 | 2015-04-07 | Trackmobile Llc | Ballast load device and method |
DE102012201572A1 (en) * | 2012-02-02 | 2013-08-08 | Bombardier Transportation Gmbh | Multipurpose rail vehicle |
CN104245466A (en) * | 2012-02-14 | 2014-12-24 | 伊丽·伯诺利尔 | Modular transportation vehicle |
US10300752B2 (en) * | 2013-03-14 | 2019-05-28 | Bandt Road Rail Corporation | Road/rail vehicle with tractive weight control |
CN104149814A (en) * | 2014-09-04 | 2014-11-19 | 江苏金宏泰科技股份有限公司 | Rope type car puller used at corner |
MX2022004153A (en) * | 2019-10-07 | 2022-05-02 | Trackmobile Llc | Magnetic traction assist for railcar mover. |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR743528A (en) * | 1933-04-01 | |||
US1851468A (en) * | 1930-03-20 | 1932-03-29 | Albert J Townsend | Locomotive |
US2718195A (en) * | 1950-05-25 | 1955-09-20 | Whiting Corp | Traction vehicle |
GB915334A (en) * | 1960-10-14 | 1963-01-09 | Rolls Royce | Locomotives |
US3198137A (en) * | 1963-02-07 | 1965-08-03 | Whiting Corp | Traction vehicle |
US3238896A (en) * | 1963-06-03 | 1966-03-08 | Toretsky G Mashinostriotelny Z | Locomotive with energy accumulator in the form of a revolving flywheel |
US3182605A (en) * | 1963-10-07 | 1965-05-11 | Lawrence J Brasher | Vehicle control |
US3399633A (en) * | 1965-10-20 | 1968-09-03 | Herscovitch William Howard | Convertible rail-highway tractor |
US3388928A (en) * | 1966-06-24 | 1968-06-18 | Caterpillar Tractor Co | Rail car coupler for tractors |
US3540381A (en) * | 1968-02-29 | 1970-11-17 | Whiting Corp | Locomotive with elevatable chassis and coupler |
US3633514A (en) * | 1969-12-08 | 1972-01-11 | Cleaner Container Corp | Convertible rail-highway tractor |
ZA747928B (en) * | 1974-01-28 | 1976-07-28 | Whiting Corp | Variable weight tranfer device for road-rail tractor couplers |
US4067259A (en) * | 1975-01-28 | 1978-01-10 | Whiting Corporation | Convertible rail-highway traction vehicle |
-
1973
- 1973-12-12 ZA ZA00747928A patent/ZA747928B/en unknown
-
1974
- 1974-01-28 US US437283A patent/US3884156A/en not_active Expired - Lifetime
- 1974-11-06 CA CA213,130A patent/CA1030015A/en not_active Expired
- 1974-12-03 AU AU76021/74A patent/AU476798B2/en not_active Expired
-
1975
- 1975-01-09 DE DE19752500627 patent/DE2500627A1/en not_active Withdrawn
- 1975-01-21 BE BE152587A patent/BE824632A/en unknown
- 1975-01-24 CH CH84675A patent/CH584123A5/xx not_active IP Right Cessation
- 1975-01-27 FR FR7502465A patent/FR2258997B1/fr not_active Expired
- 1975-01-27 GB GB3465/75A patent/GB1482721A/en not_active Expired
- 1975-01-27 NL NL7500927A patent/NL7500927A/en not_active Application Discontinuation
- 1975-01-28 JP JP50011838A patent/JPS50107609A/ja active Pending
- 1975-01-28 BR BR547/75A patent/BR7500547A/en unknown
-
1977
- 1977-11-23 US US05/854,086 patent/US4155309A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH584123A5 (en) | 1977-01-31 |
ZA747928B (en) | 1976-07-28 |
DE2500627A1 (en) | 1975-07-31 |
BE824632A (en) | 1975-05-15 |
CA1030015A (en) | 1978-04-25 |
JPS50107609A (en) | 1975-08-25 |
BR7500547A (en) | 1975-11-11 |
FR2258997A1 (en) | 1975-08-22 |
AU7602174A (en) | 1976-06-03 |
AU476798B2 (en) | 1976-10-07 |
NL7500927A (en) | 1975-07-30 |
US3884156A (en) | 1975-05-20 |
FR2258997B1 (en) | 1981-09-04 |
US4155309A (en) | 1979-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |